The measure of the value of x is 49.5 degrees, the correct option is B.
Given
The measure of arc QS is (4x – 18)°.
<h3>The measure of arc</h3>
Arc QS is a semicircle and hence subtended angle by semicircle at the center is 180 degrees.
The measure of the arc QS is (4x – 18)° is equal to 180 degrees.
Then,
The value of x is;
Hence, the measure of the value of x is 49.5 degrees.
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Answer:
если это 11 класс то я не пон шо написано
Answer:
962
Step-by-step explanation:
Answer:
m∠A = 90°
Step-by-step explanation:
In isosceles triangle base angles are congruent. That means we can equate measurments of angle B and angle C and solve for x!
m∠B = m∠C
11x - 10 = 7x + 10
4x - 10 = 10
4x = 20
x = 5
Now let's insert x back in the expressions for angles.
m∠B = (11x − 10)° = (11(5) − 10)° = 45°
m∠C = (7x + 10)° = (7(5) + 10)° = 45°
<u>Sum of all angles in the triangle is 180°.</u> Let's make an equation.
m∠A + m∠B + m∠C = 180°
m∠A + 45°+ 45° = 180°
m∠A = 90°
I say 10km or 7km. I really don’t remember