Garden math

Mrs. Hansen wants a garden. She wants her garden to be two triangles with grass and a terrace. The plan looks like this.

Find the rest of the sides and the area of the two triangles

The tiles are 20*20cm

Find out the area of the rectangle

How many tiles will you have to use to fill out the terrace?

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Mrs. Hansen also wants a pretty lawn. The lawn is growing exponentially.

Show that there is an exponential connection:

Find b and a, and write the equations.

Explain what y, b, a and x is.

How long will it take for the grass to be 100 cm?

20 days have passed, how long is the grass now?

Enjoy