Answer:
Step-by-step explanation:
The area of the shaded region is:
- The area of circle - area of triangle
Diameter of the circle is the hypotenuse of right triangle. As per Pythagoras:
- d = √20²+21² = √400+441= √841 = 29in
- r = d/2 = 29/2 = 14.5 in
Area of circle:
- A = πr² = 3.14*14.5² = 660.2 in²
Area of triangle:
- A = ah/2 = 20*21/2 = 210 in²
Shaded area:
Answer:
28ft.
Step-by-step explanation:
If 
equals 7 and the perimeter equals 4 times , then the perimeter would be 4 times 7.
Answer:
r = 6
Step-by-step explanation:
To get the value of r we will use the pythagoras theorem a shown;
PR² = QR² + PQ²
(4+r)² = 8² + r²
Expand
16+8r+r² = 64 + r²
16 + 8r = 64
8r = 64 - 16
8r = 48
r = 48/8
r = 6
Hence the value of r is 6
Answer:
m - 7
Step-by-step explanation:
<u>Step 1: Convert words into an expression</u>
What is the expression for seven is less than m
<em>m - 7</em>
Answer: m - 7
Answer:
Step-by-step explanation:
The two points can be made into a right triangle with the two sides defined by two lines drawn from the two given points. Use the Pythagorean Theorem to solve for the hypotenuse, the distance between the two points. See attached graph.
6^2 + 2^2 = x^2
36 + 4 = x^2
x^2 = 40
x = 6.32
