Q33 of 186 Page 263

In ΔABC, AB = 6√3 cm, AC = 12 cm and BC = 6 cm. Then, ∠B is

AB = 6√3cm.
In ΔABC,
AB² + BC² = AC²

Since the square of the longest side is equal to the sum of the squares of the remaining two sides of Δ ABC. Therefore ABC is right angled at B.

∠ B = 90°

It is given that ΔABC ~ ΔDEF. If ∠A = 30°, ∠C = 50°, AB = 5 cm, AC = 8 cm and DF = 7.5 cm then which of the following is true?

In the given figure, ∠BAC = 90° and AD ⊥ BC. Then,

In ΔABC and Δ DEF, it is given that then

In ΔDEF and ΔPQR, it is given that ∠D = ∠Q and ∠R = ∠E, then which of the following is not true?