All are congruent. Congruent means identical in size or shape. the different markings on the two shapes show that they are congruent. I can’t fully see number 10 so I can’t say it that one is or not
Answer:
C) 45 ft²
Step-by-step explanation:
<u>Formulae</u>
Area of a square = x² (where x is the side length)
Area of a triangle = 1/2 × base × height
The surface area of a square pyramid comprises:
- square base
- 4 congruent triangles
⇒ area of square base = 5² = 25 ft²
⇒ area of triangular face = 1/2 × 5 × 2 = 5 ft²
⇒ Total surface area = area of square base + 4 triangular areas
= 25 + 4(5)
= 25 + 20
= 45 ft²
Answer:
The perimeter is 
Step-by-step explanation:
The perimeter of a triangle is the distance around its edges.
The given triangle has side lengths 5x + 3, 5x – 5, and 3x – 2.
The perimeter is : 
Group similar terms to get:
Combine the similar terms to get:
Hence the perimeter in terms of x is
Answer:
x=24
Step-by-step explanation:
Use Pythagorean Theorem to solve for x.
7^2+x^2=25^2
49+x^2=625
-49 - 49
x^2=576
sqrt sqrt
x=24
