Answer:
5
Step-by-step explanation:
Since DE is tangent to the circle, that means DE is perpendicular to EF
==> DF = sqrt(4^2+3^2) = 5
340 I’m pretty sure
10x10=100 which is the base
12x10=120
120/2=60
60x4=240
240+100=340
The formula for finding the radius of a circle while only knowing the circumference is r=C ÷ 2π. Substituting the value 10 for C, and 3.14 for π, we get:
r=10 ÷ 3.14 · 2 Now we divide 10 by 6.28
r≈1.59
Answer:
The surface area of the model pyramid is
Step-by-step explanation:
we know that
The surface area of the pyramid is equal to
where
B is the area of the base of the pyramid
LA is the lateral surface of the pyramid
<em>Find the area of the base B</em>
-----> is a square
<em>Find the lateral surface area of the pyramid LA</em>
we know that
The lateral surface area is equal to the area of its four triangular faces
<em>Find the surface area of the pyramid</em>
Substitute the values
Let a checked bag = x
Since they are of the same weight
The two checked bags = x+x=2x
Another backpack that weighs 4kg
Total baggage =35
:- 2x + 4 = 35
2x = 35-4
2x = 31
The two checked bag weighs 31
Therefore the weight of one =15.5kg