Answer:
x = 30°
Step-by-step explanation:
Given that,
∠A = x°
∠B = 2x°
∠C = 90°
We need to find the value of x.
We know that the sum of angles of a triangle is equal to 180°.
ATQ,
x° + 2x° + 90° = 180°
3x° = 180°-90°
3x° = 90°
x° = 30°
So, the value of x is 30°.
I think 55 because you would multiply 11×5
18
Step-by-step explanation:
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Answer:
21.99 units
164.93 units²
Step-by-step explanation:
given radius r = 15 units
angle of sector = 84°
Length of sector = x 2 x π x r
= x 2 x 3.14 x 15
= 21.99 units
Area of sector = x π x r²
= x 3.14 x 15²
= 164.93 units²
Answer:
k = - 5
Step-by-step explanation:
Given
240 = 8(- 5 - 7k) ← divide both sides by the multiplier 8
30 = - 5 - 7k ( add 5 to both sides )
35 = - 7k ( divide both sides by - 7 )
- 5 = k