Question

Question 5 urgently needed!! Please give!! Will mark u as Brainly!!

Answer 1

Answer:

B =2A

C=A+20

A+B+C=180

A+2A+A+20=180

4A+20=180

A=40

B=80

C=60

Step-by-step explanation:

hope this is helpful

Answer 2

Answer

• The angles are 36°, 90° & 56°

Explanation

Given

• ∠B is a double of ∠A
• ∠C is 20° more than ∠A

To Find

• The three angles

Solution

Assume the angles to be,

• ∠A = x
• ∠B = 3x [3 times Angle A]
• ∠C = x+20 [20 more than Angle A]

Now we know that as per the angle sum property of a triangle the angles in a triangle will add up to 180°

➝ ∠A + ∠B + ∠C = 180°

➝ x + 3x + (x+20) = 180°

➝ x + 3x + x + 20 = 180°

➝ 5x = 180°-20

➝ x = 160/5

➝ x = 32

The Angles of the triangle

➝ ∠A = x = 32°

➝ ∠B = 3x = 3×32 = 96°

➝ ∠C = x+20 = 32+20 = 52°

Verification

➝ ∠A + ∠B + ∠C = 180°

➝ 32°+96°+52° = 180°

Hence Verified!!