Question

The angle of triangle are in the ratio 3:5:7, the triangle is.

Answer 1

Step-by-step explanation:

ratios = 3+5+7=15

a+b+c =180°

first angle =3/15[180)=1/5(180)=1/1(36)=36°

second angle=5/15(180)=1/3(180)=60°

Third angle=7/15(180)=7/5(60)=7/1(12)=7(12)=84°

Answer 2

Let the ratio - x

The angels will be - 3x , 5x , 7x

Sum of three angle of triangle is ― 180°

3x + 5x + 7x = 180°

8x + 7x = 180°

15x = 180°

$x \: = \: \frac{180}{15}$

= 12 °

FIRST ANGLE - { 3 × 12 } = 36°

We will multiply by 12 as 12 is x only

SECOND ANGLE - { 5 × 12 } = 60°

THIRD ANGLE - {7 × 12 } = 84°

Triangle is Acute angle triangle

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