Yes, because every time you subtract 7
Answer:
15•4 mm
Step-by-step explanation:
using sine rule
a÷ sinA=c ÷sinC
15•4÷sin90=0•5÷sinC
sinC =0•5 × sin90 ÷ 15•4
C =1•9°
A+B+C= 180
90+B+1•9=180
B= 88•2°
b÷sinB = a÷sinA
b÷sin88•2= 15•4÷sin90
b=sin88•2 ×15•4 ÷sin90
b =15•39
to 1 dp
b =15•4 mm
Since it is about only the outer part of the aquarium which is made of glasses we need to calculate the total surface area.
Surface area of the base = 4*3 = 12 square feet
Surface area of the shorter length of wall = 3*2 = 6 square feet
since it has another wall in opposite side. It has to be multiplied with 2.
6*2 = 12 square feet
Surface area of the longer length of wall = 4*2 = 8 square feet
since it has another wall in opposite side. It has to be multiplied with 2.
8*2 = 16 square feet
Therefore the total surface area that need to be covered with glasses
12+12+16 = 40 square feet
First, the area of the pizza then double it.
Area for a circle: Area =

* r^2
Plug in the values.
We will use 3.14 for

.
We need the radius. So half the diameter to get the radius.
18 / 2 = 9
Area = 3.14 * 9^2
Area = 3.14 * 81
Area = <span>254.34
</span>
Then multiply 2 to get the double the area.
254.34 * 2 = <span>508.68
</span>
So, the answer to this question is <span>D. 508.68 in. 2.</span>
Answer:
Step-by-step explanation:
it it cuts near the corner,then 5.
if it cuts along diagonal then 3