Question

b.
The measures of the three angles of a triangle are 30°, 40° and r.
Find the value of x.​

Answer 1

Answer:

110⁰

Step-by-step explanation:

30⁰+40⁰+r = 180⁰ (Angle sum property of a triangle)

70⁰+r = 180⁰

r = 180⁰-70⁰ = 110⁰

VERIFICATION:

110⁰+30⁰+40⁰= 180⁰

180⁰ = 180⁰

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Hope it helps you!!!

You have asked the value of x instead asking of value of r, So, I have solved the answer for x = r