Question

The angel of a triangle are in the ratio 3:7:8.Find the angel of the triangel

Answer 1

Let the angles be 3x, 7x and 8x, then
3x+7x+8x= 180 [Sum of angles in a triangle=180]
=18x= 180
=x= 180÷18
=x= 10
Therefore the angles of the triangle are: 3x= 3×10= 30
7x=7×10=70
8x=8×10=80
Therefore the angles of the triangle are 30, 70 & 80.

Answer 2

The angles of the triangles are 30°, 70°, and 80°.

Given:

The angle of a triangle is in the ratio 3:7:8.

To Find:

The angles of the triangle.

Solution:

To find the angles of the triangle we will follow the following steps:

Let the common ratio of the angles be x.

According to the question ratio of three angles is 3:7:8.

So,

The three angles of the triangle will be 3x, 7x, and 8x.

Also,

The sum of the three angles of the triangle is equal to 180°.

So,

We will first take the sum of the angles and equate it with 180°.

$3x + 7x + 8x = 180$

$18x = 180$

$x = \frac{180}{18} = 10$

The angle of triangles a

will be,

$3x = 3 \times 10 = 30$

$7x = 7 \times 10 = 70$

$8x = 8 \times 10 = 80$

The angles of the triangles are 30°, 70° and 80°.

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