All categories

3 years ago

The figure below shows ADC and BEC.Complete the two-column proof.BE AC and AD CBCB ≅ CAProve: ADC ≅ BEC

Mathematics

1 answer:

Firdavs [7]3 years ago

6 0

Isn’t ADC = CAPROVE?

You might be interested in

please help. answer is 62.1m(squared) and the objects are composite! please show the work, no matter what i do i cant seem to ge

yuradex [85]

Answer:

$SA=62.1\ m^2$

Step-by-step explanation:

step 1

Find the surface area of the smaller rectangular prism

$SA=2B+Ph$

where

B is the area of the base

P is the perimeter of the base

h is the height of the prism

$SA=2[(2.5)(1.5)]+2(2.5+1.5)(1.5)$

$SA=7.5+12=19.5\ m^2$

step 2

Find the surface area of the cube

$SA=6s^2$

where

s is the length side of the cube

$SA=6(2.5^2)=37.5\ m^2$

step 3

Find the lateral area of the cylinder

$LA=\pi DL$

where

D is the diameter of the base

L is the length of cylinder

$LA=(3.14)(0.5)(3.5)=5.495\ m^2$

step 4

Find the area of the base of cylinder

$A=\pi r^{2}$

we have

$r=0.5/2=0.25\ m$ ----> the radius is half the diameter

$A=(3.14)(0.25)^{2}=0.19625\ m^2$

step 5

Find the surface are of the composite figure

we know that

The surface area of the composite figure is equal to the surface area of the smaller rectangular prism plus the lateral area of the cylinder, plus the surface area of the cube, minus the area of the two bases of cylinder

$SA=19.5+5.495+37.5-2(0.19625)=62.1\ m^2$

5 0

3 years ago

Please help. I need to find the Slope and identify the type of Slope. I already know the type. (Number 11)

elena-14-01-66 [18.8K]

The slope =0. Horizontal lines have a slope of 0

4 0

3 years ago

The repeating decimal,0.27 repeting, is converted to the fraction 3/x. What is the value of x in the fraction?

Nuetrik [128]

Answer:5/18=.2777777777777

Step-by-step explanation:

.27777 (7 repeating)

100x=27.7777

10x= 2.7777

Subtract

90x=25

x=25/90=5/18

Check

5/18=.2777777777777

Hope that helps.

7 0

4 years ago

David charges $17 plus $7.00 per hour to mow lawns. Ari charges $11 plus $7.75 per hour to mow lawns. In what situations is Ari'

iren2701 [21]

Answer:

Ari's is less than Davids

Ari=18.75

David=24.00

Step-by-step explanation:

5 0

3 years ago

The soccer team and the American football team are sharing the field for practice today. The soccer team has practice every 2 da

Maru [420]

I believe the answer would be 4 days.

4 0

3 years ago

Read 2 more answers