The total surface area of a cone of slant height 1cm and base radius rcm is 224πcm, if r:1=2:5 find a. correct to one decimal place, the value of r
b. correct to the nearest whole number, the value of the cone. (take π 22/7​

Ineed with this problem 21 show steps

Which sums are equal to 1hold 6/8? choose all answers that are correcta.1/8+6/8b.12/8+2/8c.8/8+1/8+1/8+1/8+1/8+1/8+1/8d.8/8+6/8

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?