131)From the following figure find x+ y + z.
SSC CGL 2022
120°
SSC CGL 2022132)In triangle ABC, the bisector of angle BAC cuts the line BC at D. If BD = 6 and BC = 14 then what is the value of AB : AC?
3 : 4
133)In the given triangle, CD is the bisector of ∠BCA. CD = DA. If ∠BDC = 76°, What is the degree measure of ∠CBD?
SSC CGL 2022
66°
SSC CGL 2022134)The area of a triangle is 480 cm2 and the ratio of its sides is 10 ∶ 24 26. What is the perimeter of the triangle?
120 cm
SSC CGL 2022135)In a Δ ABC, ∠B + ∠C = 110°, then find the measure of ∠A.
70°
136)Find the area of the shaded portion of an equilateral triangle with sides 6 units shown in the following figure. A circle of radius 1 unit is centred at midpoint of a side of the triangle.
SSC CGL 2022
\(\frac{1}{2}\left( {9\sqrt 3 - \frac{{11}}{7}} \right)\) \(unit^{2}\)
SSC CGL 2022137)ΔPQR is right-angled at Q. The length of PQ is 5 cm and ∠PRQ = 30°. Determine the length of side QR.
\(5\sqrt3 cm\)
SSC CGL 2022138)'O' is a point in the interior of an equilateral triangle. The perpendicular distance from 'O' to the sides are\( \sqrt3 cm\), 2 cm, 5 cm. The perimeter of the triangle is :
48 cm
SSC CGL 2022139)The side of an equilateral triangle is 9 cm. What is the radius of the circle circumscribing this equilateral triangle?
\(3 \sqrt{3}\) cm
SSC CGL 2022140)An airplane goes 14 km due east and then 48 km due north. How far is it from its initial position?
50 km