Answer:
500cm2
Step-by-step explanation:
2(9×20)+(7×20)
=360+140=500cm2
That would be 7 because 7x2=14 and 14-9=5
Answer:
S = 85cm^2
Step-by-step explanation:
The surface area of a square pyramid is given by the following formula:
where it has taken into account the sum of the area of a square and four triangles:
h: slant height = 6cm
b: base = 5cm
By replacing in the formula you obtain:
hence, the surface area is 85cm^2
The angle immediately below x makes up the third angle of the isosceles triangle whose base angles are 55°. That third angle and x are "vertical" angles, hence equal. The value of x can be found from the sum of angles of a triangle:
x + 55° + 55° = 180°
x = 70°
The appropriate choice is the 2nd one:
70°
Answer:
0.34
Step-by-step explanation:
a.
34 / 100 = 0.34
0.34 is the decimal form of the fraction 34 / 100.
