Q30 of 168 Page 4

If in and , , then when

Given in ΔABC and ΔDEF,

We know that if in two triangles, one pair of corresponding sides are proportional and included angles are equal, then the two triangles are similar.

Hence, ΔABC is similar to ΔDEF, we should have ∠B = ∠D.

If E is a point on side CA of an equilateral triangle ABC such that, then AB² + BC + CA² =

In a right triangle ABC right-angled at B, if P and Q are points on the sides AB and AC respectively, then

If in two triangles ABC and DEF, , then

, ar () = 9 cm², ar () = 16 cm². If BC = 2.1 cm, then the measure of EF is