Question Number 223490 by mr W last updated on 26/Jul/25 Commented by Ghisom last updated on 27/Jul/25 $$\frac{\mathrm{1}}{\mathrm{2}}{a}\left({a}+{b}\right)−\frac{\mathrm{1}}{\mathrm{2}}{a}\left({a}−{b}\right)={ab}=\mathrm{77}{cm}^{\mathrm{2}} \\ $$ Commented by mr W last…
Question Number 223449 by ajfour last updated on 25/Jul/25 Answered by ajfour last updated on 26/Jul/25 $$\:\:\:\sqrt{\mathrm{1}−\theta^{\mathrm{2}} }=\frac{\mathrm{sin}\:\left(\phi−\theta\right)}{\mathrm{sin}\:\phi} \\ $$$${Wow}!\:\:\:\:\:\:{arc}\:{CD}=\:{line}\:{AB} \\ $$$$ \\ $$$$\bullet\:{Find}\:{CT}/{AO}={t}/{R}\:\:{in}\:{terms}\:{of}\:\theta. \\…
Question Number 223383 by mr W last updated on 23/Jul/25 Commented by Frix last updated on 23/Jul/25 $$\mathrm{I}\:\mathrm{guess}\:\mathrm{it}'\mathrm{s}\:\mathrm{66} \\ $$ Commented by Frix last updated…
Question Number 223301 by cemoosky last updated on 21/Jul/25 Answered by som(math1967) last updated on 21/Jul/25 $$\:\:\:{Ar}\:{of}\:{PQRK}=\mathrm{3}×\bigtriangleup{PSK} \\ $$$$\:{area}\:{of}\bigtriangleup{PSK}=\frac{\mathrm{1}}{\mathrm{2}}×\mathrm{15sin}\:\mathrm{30}×\mathrm{15cos}\:\mathrm{30} \\ $$$$=\frac{\mathrm{1}}{\mathrm{2}}×\frac{\mathrm{225}\sqrt{\mathrm{3}}}{\mathrm{4}}{cm}^{\mathrm{2}} \\ $$$$\:{area}\:{of}\:{PQRK}=\mathrm{3}×\frac{\mathrm{1}}{\mathrm{2}}×\frac{\mathrm{225}\sqrt{\mathrm{3}}}{\mathrm{4}} \\ $$$$=\frac{\mathrm{675}\sqrt{\mathrm{3}}}{\mathrm{8}}{cm}^{\mathrm{2}}…
Question Number 223315 by sonukgindia last updated on 21/Jul/25 Commented by fantastic last updated on 21/Jul/25 $${Those}\:{two}\:{square}\:{means}\:{angle}?? \\ $$ Commented by fantastic last updated on…
Question Number 223286 by mehdee7396 last updated on 20/Jul/25 $${OC}=\mathrm{4}.\mathrm{5}\:\:\:\&\:\:{EF}=\mathrm{2}\:\:\&\:\:{D}\overset{\frown} {{E}}={E}\overset{\frown} {{C}}\:\:\&\:\:{AC}=\mathrm{2}{AF}\Rightarrow{AB}=? \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\Downarrow\Downarrow\Downarrow \\ $$ Commented by fantastic last updated on 20/Jul/25 $$\mathrm{13}?? \\…
Question Number 223270 by Tawa11 last updated on 20/Jul/25 At a given instant, two cars are at distances 600m and 800m from the point of…
Question Number 223242 by mnjuly1970 last updated on 19/Jul/25 Answered by Tawa11 last updated on 19/Jul/25 $$\mathrm{Sir},\:\mathrm{did}\:\mathrm{you}\:\mathrm{hear}\:\mathrm{from}\:\:\:\:\:\mathrm{Mathdave}??? \\ $$$$\mathrm{Or}\:\mathrm{you}\:\mathrm{know}\:\mathrm{where}\:\mathrm{he}\:\mathrm{is}? \\ $$ Commented by mnjuly1970 last…
Question Number 223213 by mr W last updated on 18/Jul/25 Commented by mr W last updated on 18/Jul/25 $${find}\:{the}\:{area}\:{of}\:{rectangle}\:{ABCD}. \\ $$ Answered by gregori last…
Question Number 223157 by cemoosky last updated on 16/Jul/25 Answered by som(math1967) last updated on 16/Jul/25 $$\angle{QPN}+\angle{NML}=\mathrm{55}° \\ $$$$\therefore\angle{NPQ}=\mathrm{55}−\mathrm{40}=\mathrm{15}° \\ $$$$\angle{RQP}=\angle{NPQ}=\mathrm{15}° \\ $$ Answered by…