Answer:
516 cm squared
Step-by-step explanation:
To find the surface area of a rectangular prism such as this, is basically just like finding the OUTSIDE surfaces. We are looking for the "perimeter" of a 3D shape.
How do we do it?
- Calculate each face of the prism by multiplying Length x Width.
- Make a shortcut by combining like-figures (front of the cube and back of the cube are the same surface areas, etc.)
- Make your formula
- 2(4 · 15) + 2(10 · 15) + 2(12 · 4)
Answer:
A is the correct answer
Step-by-step explanation:
I just did this problem
Answer:
The value of AD=1 and DC=3
Step-by-step explanation:
Given: ΔABC, D∈ AC m∠ABC=m∠BDA, AB=2, AC=4
Diagram: Please find attachment.
To find: AD=? and DC=?
Calculation:
In ΔABC and ΔADB
∠ABC=∠ADB (Given)
∠A=∠A (Common)
Therefore, ΔABC ≈ ΔADB by AA similarity
If two triangles are similar then ratio their corresponding sides are equal
Therefore,

where, AD=?, AB=2, AC=4


AD=1
AD+DC=AC
1+DC=4
DC=4-1
DC=3
Hence, The value of AD=1 and DC=3
Answer:A,D,E
Step-by-step explanation:
Just did the assignment