I think it is +a but not to sure
Answer:
Cone, Triangular Pyramid, and Square Pyramid
Step-by-step explanation:
The condition in the question says, two cross sections are the same in shape but are NOT congruent. Which means they might look alike but are not congruent.
If we consider two cross sections of a cylinder, they will be absolutely congruent since they share the same radius.
If we consider two cross sections of a triangular prism and rectangular prism they both have uniform dimension and the two cross sections will be congruent to each other.
But in the case of a cone, triangular pyramid, and square pyramid the cross sections might appear the same but they are not congruent since the dimension varies uniformly from one end to the other. For example, if we cut the cone at the top the radius of the base will not be the same if we cut it from some lower end, they will look the same but they will not be congruent.
It’s first 3 letters a,b, and c
So first, we need to find the measure of x. Let's do that first.
1. You need to find the expression for angle DBC. We can't just have 36 degrees. We need the actual expression.
So, subtract 6x + 5 from 10x - 7. This will give us the expression we need.
→ (10x - 7) - (6x + 5) = 4x - 12
2. Have 36 and 4x - 12 equal each other. This will help us find the value of x.
→ 36 = 4x - 12 ⇒ x = 12 <Hopefully you know how I got that. If not, I solved it by adding 12 on both sides to isolate the variable to get 48 = 4x. Then, I divided both sides by 4 to get 12.>
3. Now we know the value of x. Using the expression 6x + 5, substitute 12 for x.
→ 6 (12) + 5 ⇒ 72 + 5 = 77
Therefore, the measure of angle ABD is 77 degrees.
Answer:
£1.31
Step-by-step explanation:
5+7+12=24
216÷24=9
Small=9x5=45
Medium=9x7=63
Large=9x12=108
2x= Medium, Large= 3x, Small=x
Small=45x, Medium= 63x2=126x, Large=108x3=324x
45x+126x+324x=495x
£648.45=495x
£648.45÷495=x
£1.31=x