Advertisements
Advertisements
प्रश्न
In the given figure, BC = CA and ∠A = 40°. Then, ∠ACD is equal to ______.
विकल्प
40°
80°
120°
60°
उत्तर
In the given figure, BC = CA and ∠A = 40°. Then, ∠ACD is equal to 80°.
Explanation:
Given, BC = CA,
∴ ∠B = ∠A = 40° ......[∵ Opposite angles of two equal sides are equal]
As we know, the measure of any exterior angle of a triangle is equal to the sum of the measure of its two interior opposite angles.
So, ∠ACD = ∠A + ∠B = 40° + 40°
⇒ ∠ACD = 80°
APPEARS IN
संबंधित प्रश्न
Find the value of the unknown exterior angle x in the following diagram:
Find the value of the unknown interior angle x in the following figure.
Using the measures of the angles given in the figure alongside, find the measures of the remaining three angles.
Using the given figure find the value of x.
If the exterior angle of a triangle is 140° and its interior opposite angles are equal, find all the interior angles of the triangle
In ∆JKL, if ∠J = 60° and ∠K = 40°, then find the value of exterior angle formed by extending the side KL
Which of the following triplets cannot be the angles of a triangle?
In the given figure, ∠TPQ = ∠ _____ + ∠ _____
In the given figure, ∠UQR = ∠______ + ∠ ______
In the given figure QP || RT. Find the values of x and y.
