Answer:
Step-by-step explanation:
ab=ab (common)
angle d = angle c (isosceles prperty)
angle a = angle a (common)
there for the triangle is congruent so sides are congruent by CPCT
Answer:
It should have 20 vertices, and the name is dodecahedron
Answer:
560,000L
Step-by-step explanation:
Given data
L=14m
W=8m
H=5m
Volume= L*W*H
Volume= 14*8*5
Volume= 560 m^3
1m^3 = 1000L
560m^3 = x
cross multiply
x= 560*1000
x= 560,000L
Hence the volume is 560,000L
Answer:
Step-by-step explanation:
Divide both sides by c
s/c = c*(h + r)/c
s/c = h + r
Subtract h from both sides
s/c - h = h-h+r
s/c - h = r
Answer:
Total number of tables of first type = 23.
Total number of tables of second type = 7
Step-by-step explanation:
It is given that there are 30 tables in total and there are two types of tables.
Let's call the two seat tables, the first type as x and the second type as y.
∴ x + y = 30 ......(1)
Also a total number of 81 people are seated. Therefore, 2x number of people would be seated on the the first type and 5y on the second type. Hence the equation becomes:
2x + 5y = 81 .....(2)
To solve (1) & (2) Multiply (1) by 2 and subtract, we get:
y = 7
Substituting y = 7 in (1), we get x = 23.
∴ The number of tables of first kind = 23
The number of tables of second kind = 7
