IBHardGeometry & Trigonometry5–6

On a plan $1$ cm represents $2$ m. A hall is a rectangle $9$ cm by $6$ cm on the plan, and floor covering costs $7$ euros per square metre. How many euros does the covering cost?

Numa planta, $1$ cm representa $2$ m. Um salão é um retângulo de $9$ cm por $6$ cm na planta, e o revestimento do chão custa $7$ euros por metro quadrado. Quantos euros custa o revestimento?

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Solution

Step 1 of 3

1.Real sides: $9 \times 2 = 18$ m and $6 \times 2 = 12$ m

On a plan 111 cm represents 222 m. A hall is a rectangle 999 cm by 666 cm on the plan, and floor covering costs 777 euros per square metre. How many euros does the covering cost?

Answer options

On a plan $1$ cm represents $2$ m. A hall is a rectangle $9$ cm by $6$ cm on the plan, and floor covering costs $7$ euros per square metre. How many euros does the covering cost?