Answer:
12
Step-by-step explanation:
4+4+4=12 :)
Answer:
see in the picture, the perimeter of this rectangle is
2( x + 3x) = 8x but the perimeter is 65.6
=> 8x = 65.6
<=> x = 65.6/8
=> x = 8.2
The area of the shaded region is
.
Solution:
Given radius = 4 cm
Diameter = 2 × 4 = 8 cm
Let us first find the area of the semi-circle.
Area of the semi-circle = 


Area of the semi-circle =
cm²
Angle in a semi-circle is always 90º.
∠C = 90°
So, ABC is a right angled triangle.
Using Pythagoras theorem, we can find base of the triangle.




cm
Base of the triangle ABC =
cm
Height of the triangle = 4 cm
Area of the triangle ABC = 

Area of the triangle ABC =
cm²
Area of the shaded region
= Area of the semi-circle – Area of the triangle ABC
= 
= 
Hence the area of the shaded region is
.
Answer: The angle's complement is 43°.
The angle's supplement is 133°.
Remember: complementary angles add up to 90°.
supplementary angles add up to 180°.
To find the measure of the angle's complement:
47 + x = 90
x = 43
To find the measure of the angle's supplement:
47 + x = 180
x = 133
Answer:
11/4 is your answer.
Step-by-step explanation:
What you do is you have to times -2 and -11/4 together.
This gives you 22/8.
This can be reduced by 2 to get:
11/4 as your answer.