21.3 is the correct answer.
Answer:
x = 100°
Step-by-step explanation:
The measure of a chord- chord angle is half the sum of the arcs intercepted by the angle and its vertical angle, that is
x =
(71 + 129)° = 0.5 × 200° = 100°
I think the answer is A
hope i helped
Answer:
<em>Option B; False</em>
Step-by-step explanation:
Consider a Triangle Inequality to prove that these segments could form a triangle;

<em>These segments could not form a triangle</em>
Answer:
The correct option is B.
Step-by-step explanation:
The area of triangle is

Where, b is the base of the triangle and h is the height of the triangle.
It is given that the base of the triangle is 10 inch and the height of the triangle is 14 inch.
The area of given triangle is



Therefore the area of triangle is 70 square inch and the option B is correct.