Category: Geometry

Question Number 22361 by tawa tawa last updated on 16/Oct/17 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 87671 by TawaTawa1 last updated on 05/Apr/20 Commented by TawaTawa1 last updated on 05/Apr/20 $$\mathrm{I}\mathrm{got}10.5{\mathrm{m}}^2\mathrm{but}\mathrm{am}\mathrm{not}\mathrm{sure}.$$$$\mathrm{Please}\mathrm{help}\mathrm{me}\mathrm{check}.$$ Commented by Tony…

Question Number 22112 by tawa tawa last updated on 11/Oct/17 $$\mathrm{A}\mathrm{boy}\mathrm{ran}\mathrm{around}\mathrm{a}\mathrm{circular}\mathrm{part}\mathrm{of}\mathrm{radius}14\mathrm{m}\mathrm{in}15\mathrm{s}.\mathrm{Calculate}\mathrm{the}$$$$\mathrm{average}\mathrm{velocity}\mathrm{and}\mathrm{the}\mathrm{average}\mathrm{speed}.$$ Answered by $@ty@mlastupdatedon11/Oct/17$$AverageVerlocity=\frac{Displacement}{time}$$$$=\frac{\mathrm{0}}{\mathrm{15}}=\mathrm{0}…

Question Number 22079 by Tinkutara last updated on 10/Oct/17 $$\mathrm{Let}ABC\mathrm{be}\mathrm{a}\mathrm{triangle}\mathrm{and}{h}_a\mathrm{the}$$$$\mathrm{altitude}\mathrm{through}A.\mathrm{Prove}\mathrm{that}$$$${(b+c)}^2⩾a^2+4h_a^2.$$$$(\mathrm{As}\mathrm{usual}a,b,c\mathrm{denote}\mathrm{the}\mathrm{sides}BC,$$$$CA,AB\mathrm{respectively}.)$$…

Question Number 22001 by vk loyal last updated on 09/Oct/17 $$if\left|\begin{array}{c}z-\frac{z}{4}\\ \end{array}\right|=2thenvalueof\left|\begin{array}{c}z\\ \end{array}\right|$$ Answered by ajfour last updated on 09/Oct/17 $$\mid z-\frac{z}{4}\mid =\frac{3}{4}\mid z\mid =2$$$$\Rightarrow \mid z\mid =\frac{8}{3}.$$…