Poornima: Triangles @2

Triangles

1. If the triangle's sides are a base that is 10 inches, a height that is 4 inches, and the other side that is

5 inches, what is the area of that triangle?

2. A right triangle has an angle measuring 38 degrees. Which is the degree measure of another angle of

this triangle?

3.One angle of the triangle is $85^{\circ}$ and the other two angles are in the ratio $8 :11$ . Find the measures of each of the unknown angles.

4.Three angles of a triangle measures $(2x)^{\circ}, (4x-7)^{\circ} \ and\ (5x-11)^{\circ}$ . Find the value of $x$ and the measures of all the angles.

5.In $\Delta ABC, \angle A=3\ \angle B=6 \ \angle C$ . Find the angles of the triangle.

6.Using the information given in the adjoining figure, find the value of $x \ and\ y.$ P12

7. In the adjoining figure, $DCBE$ is a straight line, $\angle ABD=135^{\circ} \ and\ \angle ACE=125^{\circ}$ .

Find $\angle BAC.$

P13

Poornima

Friday, 6 November 2020

Triangles @2

Triangles

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