Answer:
The lateral area = 450 mm²
Step-by-step explanation:
The lateral area of any prism is equal to the areas of the sides faces
∵ The base of the prism is triangle
∴ It has 3 side faces
∵ The lengths of the side faces are 5 , 12 , 13 and their height is 15
∴ The lateral area = (5 × 15) + (12 × 15) + (13 × 15)
= 75 + 180 + 195 = 450 mm²
Answer:

Step-by-step explanation:

Subtract 1 from both sides

Simplify

Multiply both sides by -1, which reverses the inequality also

Simplify

Multiply both sides by 5

Simplify

25 i think. cause if there’s 100 people and the pilates looks like half (50) and spinning looks like half of 50 which would be 25.