Answer:
A) 283.4mm^2
Step-by-step explanation:
Ok area of a circle
A=πr2
Radius is half of diameter
19/2=9.5
so
A=(3.14)9.5^2
A=283.385
round this nearest tenth
283.4mm^2
Answer:
-4n+1
Step-by-step explanation:
hopfully this is what you were looking for
1/5 =. 3/ 15 because you are multiplying the numerator by 3 so the denominator has to be multiplied by 3 as well
7/8 =. 14/16 because you are multiplying the numerator by 2 the denominator has to be multiplied by 2 as well
1/6. =. 2/12 because you are multiplying the numerator by 2
<u>Answer:</u>
The correct answer option is C.
.
<u>Step-by-step explanation:</u>
We are given an equilateral triangle which is divided into two equal halves and that makes two right angled triangles with known measures of angles.
We are to find the length of the altitude of the triangle. For that we can use the trigonometric ratios.




Therefore, the correct answer option is C.
.