-3 i think hope it helps:)
Answer:
Area of 1 Right angle triangle= 1/2* 3*4= 6
Area of both triangle= 6*2= 12
Area of rectangle= 8*5= 40
Area of Both rectangles= 40*2= 80
Total surface area= (12*2)+ 80= 24+80= 104
Answer:
Step-by-step explanation:
i) the length of each side of the block is 154m.
ii) the block is a square block
iii) so the perimeter of the square block will be = 4 × length of one side.
iv) Therefore the perimeter of the square block is = 4 × 154 m = 616 m.
Answer:

Step-by-step explanation:



