Bu using Pythagoras theorem
(x^2)+(21)^2=(75)^2
Therefore. 5625-441=(x)^2
X^2=5184
Therefore x=72
Third side length=72 units
Answer:
52
Step-by-step explanation:
i did the test.
Is a function domain is 1 5 10 11 14. Range is 6 50 150 176 266
Step-by-step explanation:





x = 3 or x = -2 we dont use the (-2) because we have a sqrt
So x =3
THE HEIGHTTo find the height, use trigonometry ratio (tan) of 60°

= tan α
plug in the numbers

= tan 60°

= √3
move 10 to the right side
height = 10√3
The height is 10√3 cmTHE AREATo determine the area of a triangle, use the following formula

b stands for the base, h stands for the height
plug in the numbers
a = 1/2 × b × h
a = 1/2 × 10 × 10√3
a = 5 × 10√3
a = 50√3
The area is 50√3 cm²