Question 2 (1 point) The front and sides of this staircase are to be painted with two coats of sealant. Determine the surface are to be painted. (Ignore the back and the bottom of the shape) 1.2 m 36 cm 20736cm2 10368cm O 2.1m2 10.7m2Question 5 (1 point) Determine the volume of Sirius' doghouse to the nearest hundredth of a cubic metre. 1.2 m Sirius 1.5 m 70 cm 90 cmQuestion 3 (1 point) A bag of concrete costs $10.99 and makes approximately 13m" of concrete when mixed. Determine the cost of building this concrete riser. 15 m 20 m 8 m 23 m $2572.31 $2569.97 $2578.42 $3595.99Question 4 (1 point) A concrete sealant costs $24.97 and covers approximately 8072. Determine the cost of painting thus riser with two coats of sealant. Do not include the bottom of the riser. 15 m 20 m 8 m 23 m $624 $359 $325 $618" "mine the surface area, in square metres cf the exterior Bf: _ he door IS cut. Include the floor. Round your answer t6 twa d